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ser-zykov [4K]
3 years ago
10

Select each expression that is equivalent to 3(n+6) . Select all that apply.

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
8 0
The answer is both b and d!!!
Marta_Voda [28]3 years ago
6 0
ANSWER

B. 3n+18

D. 2(n+6)+(n+6)



EXPLANATION

The given expression is

3(n + 6)


We expand the bracket using the distributive property to obtain,


= 3n + 18

This will give us option B as one of the correct answers.


We could also rewrite

3(n + 6) = 2(n + 6) + 1(n + 6)



This will give us


3(n + 6) = 2(n + 6) + (n + 6)


Hence option D is another correct answer.
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11/12 divide by 2 5/8
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Answer:

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Step-by-step explanation:

Keep, change, and flip is how you divide fractions. You change divide to multiply and then turn 2 5/8 into an improper fraction. And you will get 21/8. Next, flip that number to the reciprocal, which is 8/21. Multiply 8/21 with 11/12 to get 22/63.

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4 years ago
Find the area of a figure
motikmotik

Answer:

4.62 sq ft

Step-by-step explanation:

Area of rectangle = 2.5 x 1 = 2.5

To get area of triangle we must use the altitude theorem to find the height:

let 'x' = altitude (or height)

x/1.5 = 2/x

cross-multiply to get:

x² = 3

x = \sqrt{3}

Area of triangle = 1/2(2.5)(\sqrt{3})

= 1.25\sqrt{3} which is approx 2.12

Total area = 2.5 + 2.12 = 4.62

8 0
3 years ago
Twice a number increased by seven is equal to five. Which of the following represents the equation and solution for this stateme
Aloiza [94]

Answer:

that is the solution is to the question

6 0
4 years ago
The initial population of a town is 4100​, and it grows with a doubling time of 10 years. What will the population be in 8 ​year
Marianna [84]
If the population is doubling every 10 years, the rate of change is 100%, for the period of 10 years, so, whatever it happens to be at the time, it grows by 100%, namely it doubles.

\bf \textit{Periodic Exponential Growth}\\\\
A=I(1 + r)^{\frac{t}{p}}\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
I=\textit{initial amount}\to &4100\\
r=rate\to 100\%\to \frac{100}{100}\to &1.00\\
t=\textit{elapsed time}\to &8\\
p=period\to &10
\end{cases}
\\\\\\
A=4100(1 + 1)^{\frac{8}{10}}\implies A=4100(2)^{\frac{4}{5}}\implies A=4100\sqrt[5]{2^4}
3 0
3 years ago
I don’t understand it
aliya0001 [1]

Answer:

474

Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
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